Real Madrid coach Jose Mourinho has taken a swipe at Barcelona interim coach Jordi Roura for talking about referees prior to the two sides' clash in the Copa del Rey second leg on Tuesday.
Roura cast his doubt on the ability of match official Alberto Undiano Mallenco to conduct the proceedings smoothly at Camp Nou when he said that he needs to go unnoticed during the encounter.
"I'd rather stick to the sporting lessons that we have received from Barcelona in the past, to not talk about referees or pressure them, to not look for cards or simulate bookings for our opponents and obviously to play football, which they do very well," Mourinho told reporters.
"We want to continue respectfully in that way."
The first leg at the Santiago Bernabeu ended in a 1-1 draw.
